224 Wigglesworth . — The young Sporophytes of 
that of the stem, as seen in transverse sections. The xylem strands appear 
to have united in Fig. 2 , but immediately above separate again, and an 
Diagram 3, Figs. t-to. Showing changes which take place in the vascular arrangement of the 
stem of the young spoiophyte of L. coniplanatum (see PI. XXII, Fig. i), proceeding from the base 
upwards. Fig. i shows three xylem strands passing off to the first root. Shaded parts represent 
xylem. 
arrangement similar to that occurring in the root is found (Diagram 3, 
Figs. 4 and 5 ; and for root, PI. XXII, Fig. 9). 
